Patent EA-003383-B1 (EA)
Title: Strip-casting machine for producing a metal strip
Inventor: MARTI HEINRICH A
IPC: B22D11/06
Filed: 2000-09-19
Abstract: 1. A strip-casting machine (20) for producing a metal strip consists of a pair of casting rolls (22, 24) arranged in side-by-side parallel relation and lateral sealing elements (25) that are provided with respective sealing plates (61) at both sides of the casting rolls (22, 24), a respective sealing plate is pushed or pressed against the two equilateral front faces (22', 24') of the casting rolls (22, 24) in such a manner that, in the heated operational state, it facilitates an extremely exact positioning on the front faces of the casting rolls, characterized in that the sealing plate (61) being pushed or pressed against is mounted in such a manner as to allow a three-dimensional displacement of the sealing plate, as if floating. 2. The machine according to claim 1, characterized in that a respective lateral sealing element (25) is connected to a carrying element (41) and consists of the sealing plate (61) mounted on a supporting frame (64, 65) a pushing or pressing member carrying element (41) acting upon the plate (61) and a floating support acting upon the carrying element (41). 3. The machine according to claim 1 or 2, characterized in that the pressing member comprises at least one, preferably three independently controlled cylinders (71) which exert a controllable pushing pressure on a respective sealing plate (61) by their pistons as one point or multi point support. 4. The machine according to claim 1 or 2, characterized in that the pressing member comprises at least one, preferably three independently controlled cylinders (71) which, by their pistons, provide a controllable or contact-free approach of a respective sealing plate (61) to front faces (22', 24') of the casting rolls (22, 24). 5. The machine according to claims 1 to 4, characterized in that the supporting frame (64, 65) with a sealing plate (61) thereon is mounted on a connecting plate via swivels (66, 67), the plate (80) is retained on the carrying element (41, 41') by a pivot joint (81) in a float state, the supporting frame (64, 65) is permanently pressed against the pistons (72) via an elastic connection arranged between the frame (64, 65) and the connecting plate (80). 6. The machine according to claim 5, characterized in that each swivel is formed by horizontally and vertically positioned pivoted levers (66, 67) said pivoted levers (66, 67) are mounted by one end on the supporting frame (64) and by the other end on the connecting plate (80), wherein a spherical bearing is arranged at one end of a respective pivoted lever (66, 67). 7. The machine according to claims 1 to 4, characterized in that the carrying element (41) which retains lateral sealing member (25) belongs to a manipulator (40) using which a respective lateral sealing can be moved to the casting rolls (22, 24) or withdrawn from them. 8. The machine according to claim 5, characterized in that the lateral sealing members (25) in the aside position from the casting rolls (22, 24) are centered with a device (85) arranged on an upright (32) of the casting rolls and its cylinders are connected to a respective drive member. 9. The machine according to claims 1 to 8, characterized in that the triangular sealing plate (61) made of a refractory material is provided with a cylinder in each its angular zone. 10. The machine according to claims 1 to 9, characterized in that at least one of the casting rolls (22, 24) is adapted for axial regulation for a precise positioning their front faces (22', 24') relative to each other. 11. The machine according to claim 10, characterized in that the regulation device (13) comprises at least one displacement unit (26) acting upon one end of a casting roll (22) and designed, for example, in the form of a hydro cylinder or a guidescrew drive and a pressing device (29) acting upon the other end of the casting roll (22) and designed, for example, in the form of a plunger (33). 12. The machine according to claim 11, characterized in that the displacement unit (26) and the pressing device (29) act upon the axis (1) of a casting roll (22). 13. The machine according to claim 10, characterized in that the casting roll is provided with a stationary axis (1) and a rotatable cooling casing (5) arranged on said axis and adapted for displacement hydraulically. 14. The machine according to claim 13, characterized in that the displacement unit is mounted at one end of the casting roll and comprises a piston ring (14) related to the casing (5) and an enveloping groove (16) related to the axis for arranging the piston ring forming two cylindrical chambers (17). 15. The machine according to claim 13 or 14, characterized in that the cylindrical chambers (17) of the displacement unit are adapted for applying different hydraulic pressures (p1, p2).